Fungicidal aniline derivatives

ABSTRACT

A compound of the formula: ##STR1## useful as a fungicidal agent against phytopathogenic fungi, particularly their strains resistant to benzimidazole, thiophanate and/or cyclic imide fungicides.

This application is a continuation of application Ser. No. 606,134, filed on May 2, 1984.

This invention relates to fungicidal aniline derivatives.

Benzimidazole and thiophanate fungicides such as Benomyl (methyl 1-(butylcarbamoyl)benzimidazol-2-ylcarbamate), Fubelidazol (2-(2-furyl)benzimidazole), Thiabendazole (2-(4-thiazolyl)benzimidazole), Carbendazim (methyl benzimidazol-2-ylcarbamate), Thiophanate-methyl (1,2-bis(3-methoxycarbonyl-2-thioureido)benzene), Thiophanate (1,2-bis(3-ethoxycarbonyl-2-thioureido)benzene), 2-(O,S-dimethylphosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido)benzene and 2-(O,O-dimethylthiophosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido)benzene are known to shown an excellent fungicidal activity against various plant pathogenic fungi, and they have been widely used as agricultural fungicides since 1970. However, their continuous application over a long period of time provides phytopathogenic fungi with tolerance to them, whereby their plant disease-preventive effect is much lowered. Further, the fungi which gained tolerance to certain kinds of benzimidazole or thiophanate fungicides also show considerable tolerance to some other kinds of benzimidazole or thiophanate fungicides. Thus, they are apt to obtain cross-tolerance. Therefore, if any material decrease of their plant disease-preventive effect in certain fields is observed, their application to such fields has to be discontinued. But, it is often observed that the density of drug-resistant organisms is not decreased even long after the discontinuation of the application. Although other kinds of fungicides have to be employed in such case, only few are so effective as benzimidazole or thiophanate fungicides in controlling various phytopathogenic fungi. Benzimidazole and thiophanate fungicides will be hereinafter referred to as "benzimidazole thiophanate fungicides".

Cyclic imide fungicides such as Procymidone (3-(3',5'-dichlorophenyl)-1,2-dimethylcyclopropane-1,2-dicarboximide), Iprodione (3-(3',5'-dichlorophenyl)-1-isopropylcarbamoylimidazolidine-2,4-dione), Vinchlozolin (3-(3',5'-(dichlorophenyl)-5-methyl-5-vinyloxazolidine-2,4-dione), ethyl (RS)-3-(3',5'-dichlorophenyl)-5-methyl-2,4-dioxooxazolidine-5-carboxylate, etc., which are effective against various plant diseases, particularly those caused by Botrytis cinerea, have the same defects as previously explained with respect to the benzimidazole thiophanate fungicides.

In C.R. Acad. Sc. Paris, t. 289, S'erie D, pages 691-693 (1979), it is described that such herbicides as Barban (4-chloro-2-butynyl N-(3-chlorophenyl)carbamate), Chlorobufam (1-methyl-2-propynyl N-(3-chlorophenyl)carbamate), Chloropropham (isopropyl N-(3-chlorophenyl)carbamate) and Propham (isopropyl N-phenylcarbamate) exhibit a fungicidal activity against certain organisms tolerant to some of benzimidazole thiophanate fungicides. However, their fungicidal activity against the drug-resistant fungi is not strong enough, and hence, practically they can not be used as fungicides.

As a result of a study seeking a new type of fungicides, it has now been found that a compound of the formula: ##STR2## wherein:

X is a nitro group, a 2-nitrovinyl group, an amino group, an isothiocyanato group, a lower alkylamino group or a group of the formula: ##STR3## (in which A' and A" are, same or different, an oxygen atom or a sulfur atom, R₂ and R₂ ' are, same or different, a lower alkyl group, a lower alkenyl group, a lower alkynyl group or a halo(lower)alkyl group or a lower alkoxy(lower)alkyl group and n is 0, 1 or 2);

Y is a lower alkyl group, a lower alkenyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group, a hydroxy(lower)alkyl group, a nitro group, a formyl group, a hydroxyiminomethyl group, a lower alkoxyiminomethyl group, a lower alkoxy group, a lower alkoxycarbonyl group, a hydrogen atom, a halogen atom or an acyl group;

Z is a hydrogen atom, a hydroxyl group, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a lower alkoxycarbonyl(lower)alkyl group or a group of the formula: ##STR4## or --SR₄ (in which R₃ is a lower alkyl group, a cyclo(lower)alkyl group or a phenyl group and R₄ is a lower alkyl group, a phenyl group or a lower alkoxycarbonyl group);

R is a hydrogen atom or a group of the formula: --OR₁ (in which R₁ is a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group, a cyclopropylmethyl group or a cyano(lower)alkyl group;

A is an oxygen atom or a sulfur atom; and

B is a lower alkyl group, a lower alkenyl group, a cyclo(lower)alkyl group, a phenyl group or a group of the formula: --W--R₅ (in which W is an oxygen atom or a sulfur atom and R₅ is a cyclo(lower)alkyl group, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a halo(lower)alkenyl group, a halo(lower)alkynyl group, a a cyclo(lower)alkyl(lower)alkyl group or a lower alkyl group substituted with halogen, cyano, lower alkoxy, phenyl, lower alkenyloxy, halo(lower)alkoxy, phenoxy and/or ar(lower)alkoxy, shows an excellent fungicidal activity against plant pathogenic fungi which have developed resistance to benzimidazole, thiophanate and/or cyclic imide fungicides. It is notable that their fungicidal potency against the organisms tolerant to benzimidazole, thiophanate and/or cyclic imide fungicides (hereinafter referred to as "drug-resistant fungi" or "drug-resistant strains") is much higher than that against the organisms sensitive to benzimidazole, thiophanate and/or cyclic imide fungicides (hereinafter referred to as "drug-sensitive fungi" or "drug-sensitive strains").

The term "lower" used hereinabove and hereinafter in connection with organic groups such as alkyl, alkenyl or alkynyl indicates to have not more than 6 carbon atoms. Examples of the term "acyl" includes lower alkanoyl and benzoyl. The prefix "ar-" is intended to mean an aromatic group such as phenyl substituted or not with lower alkyl or pyridyl substituted or not with lower alkyl.

The aniline derivatives of the formula (I) are fungicidally effective against a wide scope of plant pathogenic fungi, of which examples are as follows: Podosphaera leucotricha, Venturia inaequalis, Mycosphaerella pomi, Marssonina mali and Sclerotinia mali of apple, Phyllactinia kakicola and Gloeosporium kaki of persimmon, Cladosporium carpophilum and Phomopsis sp. of peach, Cercospora viticola, Uncinula necator, Elsinoe ampelina and Glomerella cingulata of grape, Cercospora beticola of sugarbeet, Cercospora arachidicola and Cercospora personata of peanut, Erysiphe graminis f. sp. hordei, Cercosporella herpotrichoides and Fusarium nivale of barley, Erysiphe graminis f. sp. tritici of wheat, Sphaerotheca fuliginea and Cladosporium cucumerinum of cucumber, Cladosporium fulvum of tomato, Corynespora melongenae of eggplant, Sphaerotheca humuli, Fusarium oxysporum, f. sp. fragariae of strawberry, Botrytis alli of onion, Cercospora apii of cerely, Phaeoisariopsis griseola of kidney bean, Erysiphe cichoracearum of tobacco, Diplocarpon rosae of rose, Elsinoe fawcetti, Penicillium italicum, Penicillium digitatum of orange, Botrytis cinerea of cucumber, eggplant, tomato, strawberry, pimiento, onion, lettuce, grape, orange, cyclamen, rose or hop, Sclerotinia sclerotiorum of cucumber, eggplant, pimiento, lettuce, celery, kidney bean, soybean, azuki bean, potato or sunflower, Sclerotinia cinerea of peach or cherry, Mycosphaerella melonis of cucumber of melon, etc. Namely, the compounds of the formula (I) are highly effective in controlling the drug-resistant strains of said fungi.

The compounds (I) are also fungicidally effective against fungi sensitive to said known fungicides as well as fungi to which said known fungicides are ineffective. Examples of such fungi are Pyricularia oryzae, Pseudoperonospora cubensis, Plasmopara, viticola, Phytophthora infestans, etc.

Advantageously, the compounds (I) have low toxicity and have little detrimental actions on mammals, fishes and so on. Also, they may be applied to the agricultural field without causing any material toxicity to important crop plants.

In view of their excellent fungicidal properties, preferred are the compounds (I) of the formula: ##STR5## wherein:

X' is a nitro group, an amino group, an isothiocyanato group, a lower alkylamino group or a group of the formula: ##STR6## (in which A' and A" are, same or different, an oxygen atom or a sulfur atom, R₂ is a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a halo(lower)alkyl group or a lower alkoxy(lower)alkyl group;

Y' is a lower alkyl group, a lower alkenyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group, a hydroxy(lower)alkyl group, a nitro group, a formyl group, a hydroxyiminomethyl group, a lower alkoxy group, a lower alkoxycarbonyl group, a hydrogen atom, a halogen atom or an acyl group;

R₁ is a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group, a cyclopropylmethyl group or a cyano(lower)alkyl group;

A is an oxygen atom or a sulfur atom;

W is an oxygen atom or a sulfur atom; and

R₅ is a cyclo(lower)alkyl group, a lower alkyl group, a lower alkenyl group, a lower alkynyl group, a halo(lower)alkenyl group, a halo(lower)alkynyl group, a cyclo(lower)alkyl(lower)alkyl group or a lower alkyl group substituted with halogen, cyano, lower alkoxy, phenyl, lower alkenyloxy, halo(lower)alkoxy, phenoxy and/or ar(lower)alkoxy.

The aniline derivatives of the formula (I) can be prepared by either one of the following procedures:

Procedure (a):

The compound of the formula (I) is obtainable by reacting a compound of the formula: ##STR7## wherein X, Y, Z and R are each as defined above with a compound of the formula: ##STR8## wherein A and B are each as defined above and R₆ is a halogen atom or with a compound of the formula: ##STR9## wherein A is as defined above and B' is a lower alkyl group, a lower alkenyl group, a cyclo(lower)alkyl group or a phenyl group.

The reaction is usually carried out in the presence of an inert solvent (e.g. water, benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, chloroform, carbon tetrachloride, ethyl acetate, pyridine, dimethylformamide or their mixture). If desired, the reaction may be performed in the presence of a base (e.g. pyridine, triethylamine, potassium hydroxide, N,N-diethylaniline) so as to obtain the compound (I) in a high yield. The reaction may be accomplished at a temperature of 0° to 150° C. instantaneously or within 10 hours.

Procedure (b):

The compound of the formula (I) wherein Z is a hydrogen atom and B is a group of the formula: --W--R₅ in which W and R₅ are each as defined above can also be prepared by reacting a compound of the formula: ##STR10## wherein X, Y, R and A are each as defined above with a compound of the formula:

    H--W--R.sub.5                                              (VI)

wherein W and R₅ are each as defined above.

The reaction is usually carried out in the absence or presence of an inert solvent (e.g. benzene, toluene, xylene, diethyl ether, tetrahydrofuran, dioxane, dimethylformamide, chloroform, carbon tetrachloride). If desired, the reaction may be performed in the existence of a catalyst (e.g. triethylamine, N,N-diethylaniline, 1,4-diazabicyclo[2.2.2]octane) so as to obtain the compound (I) in a high yield. The reaction may be accomplished at a temperature of 0° to 50° C. instantaneously or within 10 hours.

The starting compound (V) can be prepared by reacting a compound of the formula: ##STR11## wherein X, Y and R are each as defined above with phosgene or thiophosgene.

The reaction is usually carried out in the presence of an inert solvent (e.g. benzene, toluene, xylene, ethyl acetate of their mixture). The reaction may be accomplished at a temperature of 50° C. to the boiling point of the solvent instantaneously or within 10 hours.

The common starting materials (II) in the above procedures are prepared, for example, by reducing the nitrobenzene derivative of the formula: ##STR12## wherein X, Y and R are each as defined above.

The reduction may be performed in an inert solvent (e.g. water, methanol, ethanol or their mixture) with a reducing agent (e.g. sodium sulfide, sodium hydrosulfide) at a temparature of 50° C. to the boiling poing of the solvent within 12 hours.

The reduction may be also performed in an aqueous organic or inorganic acid (e.g. acetic acid, hydrochloric acid, sulfuric acid) with metal dust (e.g. iron dust, zinc dust, tin dust) at a temperature of 50° to 100° C. within 12 hours.

The reduction may be also accomplished by catalytic hydrogenation, for instance, treatment with a catalyst (e.g. platinum oxide, palladium-carbon) in an organic solvent (e.g. ethanol, ethyl acetate) under an ordinary or elevated pressure at a temperature of 0° to 60° C.

The nitrobenzene derivative of the formula (VIII) can be obtained by reacting a phenol of the formula: ##STR13## wherein X and Y are each as defined above with a compound of the formula: R₁ -D wherein R₁ is as defined above and D is a leaving group (e.g. halogen, tosyloxy, mesyloxy).

The reaction may be performed in a solvent (e.g. water, N,N-dimethylformamide, dimethylsulfoxide, tetrahydrofuran, dioxane, toluene, benzene, diethyl ether or their mixture) with a base (e.g. sodium hydroxide, potassium carbonate, sodium hydride, N,N-diethylaniline, pyridine). If desired, a phase transfer catalyst (e.g. tetra-n-butylammonium bromide) may be used. The reaction proceeds at a temperature of 0° to 100° C. instantaneously or within 12 hours.

The phenol (IX) can be prepared, for example, by reacting a compound of the formula: ##STR14## wherein Y is as defined above with a compound of the formula: ##STR15## wherein A' is as defined above, R₂ " is a lower alkyl group, a lower alkenyl group, a halo(lower)alkyl group, a lower alkoxy(lower)alkyl group or a group of the formula; --A"--R₂ (wherein A" and R₂ are each as defined above) and Z' is a halogen atom.

The reaction may be performed under the same condition as that described in Procedure (a).

The compound (X) is per se known and described in J. Chem. Soc., 1945, 663 (Y=--CH₃) and 1896, 1321 (Y=--OCH₃).

Procedure (c):

The compound of the formula (I) can be also prepared by reacting a compound of the formula: ##STR16## wherein X, Y, R, A and B are each as defined above with a compound of the formula:

    Z--R.sub.7                                                 (XIII)

wherein Z is as defined above and R₇ is a leaving group (e.g. halogen, tosyloxy, mesyloxy).

The reaction is usually carried out in the presence of an inert solvent (e.g. water, benzene, toluene, xylene, dimethylformamide, dimethyl sulfoxide, dioxane, chloroform or their mixture). If desired, the reaction system may comprise a base (e.g. triethylamine, sodium hydroxide, sodium hydride) and/or a catalyst (e.g. tetra-n-butylammonium bromide). The reaction is normally accomplished at a temperature of 0° to 150° C. instantaneously or within 12 hours.

Some typical examples for preparation of the compounds of the formula (I) are illustratively shown below.

EXAMPLE 1 Preparation of isopropyl N-(3-chloro-4-ethoxy-5-methoxycarbonylaminophenyl)carbamate (Procedure (a))

Methyl N-(2-ethoxy-3-chloro-5-aminophenyl)carbamate (1.39 g) and N,N-diethylaniline (0.85 g) were dissolved in toluene (15 ml). To the resultant solution was dropwise added isopropyl chloroformate (0.70 g) in 5 minutes under ice-cooling. The resultant mixture was allowed to stand at room temperature for 12 hours, poured into ice-water and extracted with ethyl acetate. The extract was washed with water, dried over magnesium sulfate and concentrated under reduced pressure. The reside was purified by silica gel chromatography using a mixture of toluene and ethyl acetate as the eluent to give isopropyl N-(3-chloro-4-ethoxy-5-methoxycarbonylaminophenyl)carbamate (Compound No. 2) (1.73 g) in a yield of 92.0%. M.P., 140° C.-142° C.

EXAMPLE 2 Preparation of 1-methyl-2-propenyl N-(3-chloro-4-ethoxy-5-methoxycarbonylaminophenyl)carbamate (Procedure (b))

Methyl N-(2-ethoxy-3-chloro-5-aminophenyl)carbamate (2.67 g) in toluene (20 ml) was dropwise added to an ethyl acetate solution containing 10 g of phosgene at 10° to 20° C. The resultant mixture was gradually heated and, after being refluxed for 30 minutes, cooled to room temperature. The solvent was removed by distillation under reduced pressure to give methyl N-(2-ethoxy-3-chloro-5-isocyanatophenyl)carbamate. The thus obtained crude substance was added to a toluene solution (50 ml) containing triethylamine (1.0 g) and 3-buten-2-ol (0.79 g). The resultant mixture was allowed to stand at room temperature for 12 hours, poured into ice-water and extracted with ethyl acetate. The extract was washed with water, dried over magnesium sulfate and concentrated under reduced pressure. The residue was purified by silica gel chromatography using a mixture of toluene and ethyl acetate as the eluent to give 1-methyl-2-propenyl N-(3-chloro-4-ethoxy-5-methoxycarbonylaminophenyl)carbamate (Compound No. 3) (3.57 g) in a yield of 95.6 %. n_(D) ²⁵.0 1.5383.

EXAMPLE 3 Preparation of isopropyl N-methyl-N-(3-nitro-4,5-diethoxyphenyl)carbamate (Procedure (c))

Isopropyl N-(3-nitro-4,5-diethoxyphenyl)carbamate (3.12 g) and iodomethane (4.30 g) were dissolved in tetrahydrofuran (10 ml). The resultant solution was dropwise added to a tetrahydrofuran solution containing potassium hydroxide (1.68 g) and tetra-n-butylammonium bromide (1.0 g). After being allowed to stand at room temperature for 12 hours, the reaction mixture was poured into ice-water and extracted with toluene. The extract was washed with water, dried over magnesium sulfate and concentrated under reduced pressure. The reside was purified by silica gel chromatography using a mixture of toluene and ethyl acetate as the eluent to give isopropyl N-methyl-N-(3-nitro-4,5-diethoxyphenyl)carbamate (Compound No. 161) (2.92 g) in a yield of 89.5%. n_(D) ²⁰.0 1.5075.

Specific examples of the compounds (I) of the present invention, which can be readily prepared according to Procedure (a), (b) or (c), are shown in Table 1.

    TABLE 1       ##STR17##       Compound        No. X Y R Z A B Physical constant       1 NHCOCH.sub.3 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P.      173-174° C. 2 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O OC.sub.3      H.sub.7 (i) M.P. 140-142° C.  3 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5      H O       ##STR18##       n.sub.D.sup.25.0 1.5383  4 NHCOOCH.sub.2 CHCH.sub.2 Cl OC.sub.2 H.sub.5      H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.24.0 1.5320 5 NO.sub.2 COOCH.sub.3      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P. 117-120° C. 6      NHCOOCH.sub.3 H OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) M.P. 121-122° C. 7 NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H      O OC.sub.3 H.sub.7 (i) M.P. 128-130° C. 8 NHCOOCH.sub.3 OCH.sub.3 O      C.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.26.0 1.5090 9      NHCOOCH.sub.3 OC.sub.2 H.sub.5 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.26.0 1.5146 10 NHCOOCH.sub.3 COOCH.sub.3 OC.sub.2 H.sub.5 H      O OC.sub.3 H.sub.7 (i) M.P. 92-94° C. 11 NO.sub.2 COOCH.sub.3      OCH.sub.2 CHCH.sub.2 H O OC.sub.3 H.sub.7 (i) M.P. 91-93° C. 12      NO.sub.2 COOCH.sub.3 OCH.sub.2 CCH H O OC.sub.3 H.sub.7 (i) M.P.      123-124° C. 13 NHCOOCH.sub.3 OCH.sub.3 OCH.sub.2 CH.sub.2 F H O      OC.sub.3 H.sub.7 (i) n.sub.D.sup. 24.0 1.5200 14 NO.sub.2 COOCH.sub.3      OCH.sub.2 OCH.sub.3 H O OC.sub.3 H.sub.7 (i) M.P. 98-100° C.  15      NO.sub.2 COOCH.sub.3       ##STR19##       H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.24.5 1.5266       16 NO.sub.2 COOCH.sub.3 OCH.sub.2 CN H O OC.sub.3 H.sub.7 (i) M.P.      147-148° C. 17 NO.sub.2 COOCH.sub.3 OCH.sub.3 H O OC.sub.3      H.sub.7 (i) M.P. 106-108° C.       18      ##STR20##       Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.25.0 1.5589      19       ##STR21##       Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.24.0 1.5385      20       ##STR22##       Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.25.0 1.5799      21 NHCOOCH.sub.2 CCH Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.25.0 1.5236 22 NHCOOCH.sub.2 CH.sub.2 F Cl OC.sub.2 H.sub.5      H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.24.0 1.5128 23 NHCOOCH.sub.2      CH.sub.2 OCH.sub.3 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) n.sub.D.sup.25.0 1.5220 24 NHCOCHCH.sub.2 Cl OC.sub.2 H.sub.5 H O      OC.sub.3 H.sub.7 (i) M.P. 172-174° C. 25 NHCOCH.sub.2 Cl Cl      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P. 140-142° C. 26      NHCOC.sub.2 H.sub.5 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P.      185-186.5° C. 27 NHCOCH.sub.2 OCH.sub.3 Cl OC.sub.2 H.sub.5 H O      OC.sub.3 H.sub.7 (i) M.P. 136.5-138° C. 28  NHCOOCH.sub.3 Br      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.30(d, 6H), 1.43(t, 3H),      3.79(s, 3H),        4.02(q, 2H), 5.00(m, 1H), 6.69(broad, 1H), 7.20        (broad, 1H), 7.60(d, 1H), 7.92(d, 1H) 29 NHCOOC.sub.3 H.sub.7 (i)      COCH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.27(d, 6H), 1.30(d, 6H),      2.59(s, 3H),        3.90(q, 2H), 4.80-5.30(m, 2H), 6.66(broad, 1H), 7.20             (broad, 1H), 7.48(d, 1H), 8.27(d, 1H) 30 NHCOOCH.sub.3 COCH.sub.3 O      C.sub.2 H.sub.5 H O O.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.30(d, 6H), 1.38(t, 3H),      2.55(s, 3H),        3.75(s, 3H), 3.81(q, 2H), 4.94(m, 1H), 6.66(broad,           1H), 7.11(broad, 1H), 8.14(d, 1H), 7.44(d, 1H) 31 NHCOOCH.sub.3 Cl      OC.sub.2 H.sub.5 H S OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.40(d, 6H), 1.41(t, 3H),      3.74(s, 3H),        4.02(q, 2H), 5.60(m, 1H), 7.12(broad, 1H), 7.20(d,            1H), 8.00(d, 1H), 8.32 (broad, 1H) 32 NHCOOCH.sub.3 Cl OC.sub.2      H.sub.5 H S SC.sub.3 H.sub.7       (i) n.sub.D.sup.22.5 1.5822 33 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      SC.sub.2 H.sub.5 M.P. 113.5-114° C. 34 NHCOOCH.sub.3 Cl OC.sub.2      H.sub.5 H O OC.sub.2 H.sub.5 NMR δ.sub.CDCl.sbsb.3.sup.TMS :      1.25(t, 3H), 1.36(t, 3H), 3.75(s, 3H),        4.00(q, 2H), 4.20(q, 2H),      6.96(broad, 1H), 7.20        (broad, 1H), 7.41(d, 1H), 7.85(d, 1H)  35      NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O      ##STR23##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.40(t, 3H), 1.45(d, 3H), 2.51(d,      1H),3.78(s, 3H), 4.02(q, 2H), 5.20-5.70(m, 1H), 7.28(broad, 1H),      7.40(broad, 1H) 7.46(d, 1H), 7.88(d, 1H)  36 NHCOOCH.sub.3 Cl OC.sub.2      H.sub.5 H O OCH.sub.3 M.P. 119-122° C. 37 NHCOOCH.sub.3 Cl      OC.sub.2 H.sub.5 H O OCH.sub.2 CHCHCH.sub.2 Cl n.sub.D.sup.24.0 1.5464      38 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O OCH.sub.2 CCCH.sub.2 Cl NMR      δ.sub.CDCl.sbsb.3.sup.TMS : 1.41(t, 3H) 3.76(s, 3H), 4.05(q, 2H),            4.05-4.30(m, 2H), 4.70-4.90 (m, 2H), 7.25(broad, 2H),      7.41(d, 1H), 7.89(d, 1H)  39 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O       ##STR24##       M.P. 153-155.5° C.  40 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O       ##STR25##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.39(t, 3H), 3.79(s, 3H), 4.02(q,      2H),6.70-7.40(m, 6H), 7.50(d, 1H), 7.91(d, 1H)  41 NHCOOCH.sub.3 Cl      OC.sub. 2       H.sub.5 H O      ##STR26##       n.sub.D.sup.25.0 1.5562  42 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      OCH.sub.2 CH.sub.2 CN NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.39(t, 3H),      2.73(t, 2H), 3.70(s, 3H),        3.95(q, 2H), 4.27(t, 2H) 7.50(d, 1H),      7.99(d, 1H),        8.28(broad, 1H), 9.22(broad, 1H)  43 NHCOOCH.sub.3      Cl OC.sub.2       H.sub.5 H O      ##STR27##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.26(d, 3H), 1.38(t, 3H), 3.31(s,      3H),3.40(d, 2H), 3.71(s, 3H) 3.96(q, 2H), 5.00(m, 1H)7.32(d, 1H),      7.78(d, 1H)  44 NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O      ##STR28##       n.sub.D.sup.25.5 1.5560  45 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O       ##STR29##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 0.20-1.20(m, 5H), 1.30(d, 3H),      1.35(t, 3H), 3.90-4.50(m, 3H), 3.74(s, 3H) 6.84(broad, 1H), 7.20(broad,1H      ), 7.40(d, 1H), 7.81(d, 1H)  46 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      OCH.sub.2 CH.sub.2 OCH.sub.2       CHCH.sub.2 NMR δ.sub.CDCl.sbsb.3.sup.TMS       : 1.43(t, 3H), 3.60-3.90(m, 2H), 3.78(s, 3H),        4.03(q, 2H),      4.20-4.50(m, 2H), 5.00-6.70(m, 5H), 7.40(d, 2H),        7.88(d, 2H) 47      NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O OCH.sub.2 CH.sub.2 OCH.sub.2      CH.sub.2 Cl n.sub.D.sup.24.0 1.5323  48 NHCOOCH.sub.3 Cl OC.sub.2      H.sub.5 H O       ##STR30##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.35(t, 3H), 1.45(d, 2H), 3.78(s,      3H),4.04(q, 2H), 5.00-5.40(m, 1H), 6.50-7.30(m, 7H), 7.40(d, 1H),      7.84(d, 1H)  49 NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O      ##STR31##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.39(t, 3H), 3.70-4.00(m, 2H),      3.75(s, 3H), 4.00(q, 2H), 4.20-4.40(m, 2H), 4.50(s, 2H), 6.90-7.30(m,      5H), 7.38(d, 1H), 7.81(d, 1H)  50 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O       ##STR32##       n.sub.D.sup.25.0 1.5348  51 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      OCH.sub.2 CF.sub.3 NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.36(t, 3H),      3.75(s, 3H), 4.02(q, 2H),        4.49(q, 2H), 7.24(broad, 1H), 7.40(d,      1H), 7.60        (broad, 1H), 7.85(d, 1H) 52 NCS Cl OC.sub.2 H.sub.5 H O O      C.sub.3 H.sub.7 (i) n.sub.D.sup.29.8 1.5812 53 NH.sub.2 COOCH.sub.3      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P. 95-96° C. 54      NO.sub.2 COCH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) NMR      δ.sub.CDCl.sbsb.3.sup.TMS : 1.28(d, 6H), 1.35(t, 3H), 2.62(s, 3H),             4.02(q, 2H), 4.99(m, 1H), 6.80(broad, 1H), 7.20        (broad,      1H), 7.62(d, 1H), 8.16(d, 1H) 55 NH.sub.2 COCH.sub.3 OC.sub.2 H.sub.5 H      O OC.sub.3 H.sub.7 (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.25(d,      6H), 1.34(t, 3H), 2.55(s, 3H),        3.80(q, 2H), 3.85(broad, 2H),      4.90(m, 1H), 6.40        (broad, 1H), 6.64(d, 1H), 7.10(d, 1H), 7.10(broa      d, 1H) 56 NO.sub.2 Br OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) NMR      δ.sub.CDCl.sbsb.3.sup.TMS : 1.30(d, 6H), 1.42(t, 3H), 4.15(q, 2H),             5.00(m, 1H), 6.75(broad, 1H), 7.25(broad, 1H), 7.75-      7.90(m, 2H) 57 NO.sub.2 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.25.0 1.5247 58 NH.sub.2 Cl OC.sub.2 H.sub.5 H O OC.sub.3      H.sub.7 (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.22(d, 6H), 1.35(t,      3H), 3.96(q, 2H),        4.96(m, 1H), 6.52(broad, 1H), 6.64(d, 1H), 6.78             (d, 1H), 3.35-4.20(broad, 1H) 59 NHCOOC.sub.3 H.sub.7 (i) Cl      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.25.0 1.5239 60      NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O OCH.sub.2 CH.sub.2       F NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.42(t, 3H), 3.75(s, 3H),      4.00(q, 2H),        4.16-5.20(m, 4H), 7.40(d, 1H), 7.91(d, 1H)  61      NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O      ##STR33##       n.sub.D.sup.25.0 1.5368  62 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      CHCHCH.sub.3 NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.35(t, 3H), 1.86(d,      3H), 3.75(s, 3H),        4.00(q, 2H), 5.75(m, 1H), 5.96(m, 1H), 7.65-7.75      (m, 2H)  63 NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O      ##STR34##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.39(t, 3H), 3,74(s, 3H), 4.04(q,      2H),7.09-8.00(m, 6H)  64 NHCOOCH.sub.3 Cl OC.sub. 2       H.sub.5 H O      ##STR35##       NMR δ.sub.CDCl.sbsb.3.sup.TMS : 0.5-1.6(m, 5H), 1.39(t, 3H),      3.70(s, 3H),3.95(q, 2H), 7.51(d, 1H), 7.80(d, 2H), 7.98(broad, 2H)  65      NO.sub.2 CH.sub.2 CHCH.sub.2 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.20.0 1.5391 66 NO.sub.2 CH.sub.2 CH.sub.2 CH.sub.3 OC.sub.2      H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.21.5 1.5268 67 NO.sub.2      CH.sub.2 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.27(d, 6H), 1.40(t, 3H),      4.00(q, 4H),        4.54(s, 2H), 4.92(m, 1H), 7.12(broad, 1H), 7.57(d,           1H), 7.80(d, 1H) 68 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2 H.sub.5 H      O OC.sub.3 H.sub.7 (i) n.sub.D.sup.21.0 1.5287 69 NO.sub.2 CH.sub.2 OH      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup. 13.0 1.5189 70      NHCOOCH.sub.3 NO.sub.2 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.18.0 1.5290 71 NHCOOCH.sub.3 NO.sub.2 OCH.sub.2 CHCH.sub.2 H      O OC.sub.3 H.sub.7 (i) n.sub.D.sup.18.0 1.5326 72 NHCOOCH.sub.3 NO.sub.2 O      CH.sub.2 CCH H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.18.0 1.5375 73      NO.sub.2 CHO OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.30(d, 6H), 1.44(t, 3H),      4.10(q, 2H),        4.95(m, 1H), 6.90(broad, 1H), 7.75(d, 1H), 8.28        (d, 1H), 10.20(s, 1H) 74 NO.sub.2 CHNOH OC.sub.2 H.sub.5 H O OC.sub.3      H.sub.7 (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.30(d, 6H), 1.38(t,      3H), 4.02(q, 2H),        5.05(m, 1H), 7.12(broad, 1H), 7.88(d, 1H),      8,12(d, 1H), 8.41(s, 1H) 75 NO.sub.2  CHNOCH.sub.3 OC.sub.2 H.sub.5 H O      OC.sub.3 H.sub.7       (i) 76 NHCOOCH.sub.3 Cl H H O OCH.sub.3 M.P. 185-196° C. 77      NHCOOCH.sub.3 Cl H H O OC.sub.3 H.sub.7 (i) Glassy 78 NHCOOCH.sub.3 Cl      OCH.sub.2 CHCH.sub.2 H O OCH.sub.3 Glassy 79 NHCOOCH.sub.3 Cl OCH.sub.2  C      CH H O OCH.sub.3 Glassy 80 NHCOOCH.sub.3 Cl OCH.sub.2 CN H O OCH.sub.3      M.P. 156-157° C. 81 NHCOOCH.sub.3 Cl OCH.sub.2 CHCH.sub.2 H O      OC.sub.2 H.sub.5 Glassy 82 NHCOOCH.sub.3 Cl OCH.sub.2 CCH H O OC.sub.2      H.sub.5 Glassy 83 NHCOOCH.sub.3 Cl OCH.sub.2 CN H O OC.sub.2 H.sub.5      Glassy 84 NHCOOCH.sub.3 Cl OCH.sub.2 CH.sub.2 CH.sub.3 H O OC.sub.3      H.sub.7 (i) n.sub.D.sup.19.5 1.5162 85 NHCOOCH.sub. 3 Cl OCH.sub.2      CHCH.sub.2 H O OC.sub.3 H.sub.7 (i) Glassy 86 NHCOOCH.sub.3 Cl OCH.sub.2      CCH H O OC.sub.3 H.sub.7 (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS :      1.25(d, 6H), 2.50(t, 1H), 3.70(s, 3H), 4.60        (d, 2H), 4.90(m, 1H),      6.60(broad, 1H), 7.30(broad, 1H), 7.35(d, 1H),        7.75(d, 1H) 87      NHCOOCH.sub.3 Cl OCH.sub.2 CN H O OC.sub.3 H.sub.7 (i) Glassy 88      NHCOOC.sub.2 H.sub.5 Cl OC.sub.2 H.sub.5 H O OC.sub.2 H.sub.5 M.P.      72-73° C. 89 NHCOOC.sub.2 H.sub.5 Cl OCH.sub.2 CHCH.sub.2 H O      OC.sub.2 H.sub.5 Glassy 90 NHCOOC.sub.2 H.sub.5 Cl OCH.sub.2 CCH H O      OC.sub.2 H.sub.5 Glassy 91 NHCOOC.sub.2 H.sub.5 Cl OCH.sub.2 CN H O      OC.sub.2 H.sub.5 M.P. 127.5-128° C. 92 NHCOOC.sub.2 H.sub.5 Cl      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.19.5 1.5212 93      NHCOOC.sub.2 H.sub.5 Cl OCH.sub.2 CHCH.sub.2 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.19.5 1.5249 94 NHCOOC.sub.2 H.sub.5 Cl OCH.sub.2 CCH H O      OC.sub.3 H.sub.7 (i) n.sub.D.sup.19.5 1.5289 95 NHCOOC.sub.2 H.sub.5 Cl      OCH.sub.2 CN H O OC.sub.3 H.sub.7 (i) Glassy 96 NHCOOCH.sub.3 CH.sub.3      OC.sub.2 H.sub.5 H O OCH.sub.3 M.P. 100-104° C. 97 NHCOOCH.sub.3      CH.sub.3 OCH.sub.2 CH.sub.2       CH.sub.3 H O OCH.sub.3 NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.05(t,      3H), 2.21(s, 3H), 3.69(s, 3H),        3.71(s, 3H), 6.55(broad, 1H),      7.05(broad, 1H), 7.15        (d, 1H), 7.65(d, 1H) 98 NHCOOCH.sub.3      CH.sub.3 OCH.sub.2       CHCH.sub.2 H O OCH.sub. 3 NMR δ.sub.CDCl.sbsb.3.sup.TMS : 2.30(s,      3H), 3.79(s, 6H), 4.30(d,2H),        5.00-6.50(m, 3H), 6.80(broad, 1H),      7.20(broad,        2H), 7.80(d, 1H) 99 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2  C      CH H O OCH.sub.3 n.sub.D.sup.19.5 1.5389 100 NHCOOCH.sub.3 CH.sub.3      OC.sub.2 H.sub.5 H O OC.sub.2 H.sub.5 n.sub.D.sup.24.5 1.5237 101      NHCOOCH.sub.3 CH.sub.3 OCH.sub.2 CH.sub.2 CH.sub.3 H O OC.sub.2 H.sub.5      n.sub.D.sup.16.5 1.5272 102 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2 CHCH.sub.2      H O OC.sub.2 H.sub.5 M.P. 85.6-88° C. 103 NHCOOCH.sub.3 CH.sub.3      OCH.sub.2 CCH H O OC.sub.2       H.sub.5 n.sub.D.sup.18.8 1.5327 104 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2 CN      H O OC.sub.2 H.sub.5 Glassy 105 NHCOOCH.sub.3 CH.sub. 3 OCH.sub.2      CH.sub.2 Br H O OC.sub.2 H.sub.5 Glassy 106 NHCOOCH.sub.3 CH.sub.3      OCH.sub.2 CH.sub.2 CH.sub.3 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.16.5      1.5022 107 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2 CHCH.sub.2 H O OC.sub.3      H.sub.7 (i) M.P. 54.5-57° C. 108 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2      CCH H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.18.6 1.5234 109 NHCOOCH.sub.3      CH.sub.3 OCH.sub.2 CN H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.25(t, 3H), 1.28(d, 6H),      2.25(s, 3H),        3.75(s, 3H), 4.12(q, 2H), 4.60(s, 2H), 7.82(d, 1H),            5.00(m, 1H), 7.20(broad, 3H) 110 NHCOOCH.sub.3 CH.sub.3 OCH.sub.2      CH.sub.2 Br H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.18.5 1.5240 111      NHCOOCH.sub.3 CH.sub.3 OCH.sub.2 CH.sub.2 CH.sub.3 H O SC.sub.2 H.sub.5      n.sub.D.sup.16.5 1.5242 112 NHCOOC.sub.2 H.sub.5 CH.sub.3 OC.sub.2      H.sub.5 H O OCH.sub.3 n.sub.D.sup.25.0 1.5292 113 NHCOOC.sub.2 H.sub.5      CH.sub.3 OCH.sub.2 CHCH.sub.2 H O OCH.sub.3 n.sub.D.sup.27.6 1.5370 114      NHCOOC.sub.2 H.sub.5 CH.sub.3 OCH.sub.2       CCH H O OCH.sub.3 n.sub.D.sup.27.6 1.5439 115 NHCOOC.sub.2 H.sub.5      CH.sub.3 OCH.sub.2 CN H O OCH.sub.3 Glassy 116 NHCOOC.sub.2 H.sub.5      CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.2 H.sub.5 M.P. 86-90° C. 117 N      HCOOC.sub.2 H.sub.5 CH.sub.3 OCH.sub.2 CHCH.sub.2 H O OC.sub.2 H.sub.5      n.sub.D.sup.19.5 1.5354 118 NHCOOC.sub.2 H.sub.5 CH.sub.3 OCH.sub.2 CCH      H O OC.sub.2 H.sub.5 n.sub.D.sup.19.5  1.5314 119 NHCOOC.sub.2 H.sub.5      CH.sub.3 OCH.sub.2 CN H O OC.sub.2 H.sub.5 n.sub.D.sup.19.5 1.5200 120      NHCOOC.sub.2 H.sub.5 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.18.0 1.5057 121 NHCOOC.sub.2 H.sub.5 CH.sub.3 OCH.sub.2      CHCH.sub.2 H O OC.sub.3 H.sub.7       (i) n.sub.D.sup.18.0 1.5188 122 NHCOOC.sub.2 H.sub.5 CH.sub.3 OCH.sub.2      CCH H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.18.0 1.5120 123 NHCOOC.sub.2      H.sub.5 CH.sub.3 OCH.sub.2 CN H O OC.sub.3 H.sub.7       (i) NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.20(t, 3H), 1.25(d, 6H),      2.25(s, 3H),        4.05(q, 2H), 4.60(s, 2H), 5.00(m, 1H), 7.00-7.30         (broad, 3H), 7.82(d, 1H) 124 NHCOOCH.sub.3 C.sub.2 H.sub.5 OC.sub.2      H.sub.5 H O OCH.sub.3 M.P. 94-95°  C. 125 NHCOOCH.sub.3 C.sub.2      H.sub.5 OC.sub.2 H.sub.5 H O OC.sub.2 H.sub.5 M.P. 113-115° C.      126 NHCOOCH.sub.3 C.sub.2 H.sub.5 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7      (i) M.P. 112-113° C. 127 NHCOSCH.sub.3 Cl OC.sub.2 H.sub.5 H O      OC.sub.3 H.sub.7 (i) M.P. 145-146° C. 128 NHCSSCH.sub.3 Cl      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P. 150-151° C. 129      NHCOOCH.sub.3 Cl OC.sub.2       H.sub.5 H O SCH.sub.3 NMR δ.sub.CDCl.sbsb.3.sup.TMS : 1.42(t,      3H), 2.40(s, 3H), 3.80(s, 3H),        4.05(q, 2H), 7.25(broad, 2H),      7.51(d, 1H), 7.79(d, 1H) 130 NHCOOCH.sub.3 Cl OC.sub.2 H.sub.5 H O      SC.sub.3 H.sub.7 (i) n.sub.D.sup.19.0 1.5515 131 NHCOOCH.sub.3 Cl      OC.sub.2 H.sub.5 H S OCH.sub.3 M.P. 100-101° C. 132 NHCOOCH.sub.3      Cl OC.sub.2 H.sub.5 H S OC.sub. 2 H.sub.5 M.P. 121-122° C. 133      NHCSOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.17.5 1.5580 134 NHCOSCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O      OC.sub.3 H.sub.7 (i) M.P. 144-145° C. 135 NHCSSCH.sub.3 CH.sub.3      OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) n.sub.D.sup.17.5 1.5850 136      NHCOOCH.sub.3 CH.sub.3 OC.sub.2       H.sub.5 H O SCH.sub.3 M.P. 142.5-144° C. 137 NHCOOCH.sub.3      CH.sub.3 OC.sub.2 H.sub.5 H O SC.sub.2 H.sub.5 M.P. 113-116° C.      138 NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O SC.sub.3 H.sub.7 (i)      M.P. 105.5-106° C. 139 NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H      S OCH.sub.3 M.P. 128.5-129° C. 140 NHCOOCH.sub.3 CH.sub.3      OC.sub.2 H.sub.5 H S OC.sub.2 H.sub.5 M.P. 130-131° C. 141      NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H S OC.sub.3 H.sub.7 (i) M.P.      169-170° C. 142 NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H S      SC.sub.3 H.sub.7 (i) n.sub.D.sup.19.0 1.5690 143 NHCOOCH.sub.3 CH.sub.3      OC.sub.2 H.sub.5 H O OCH(CH.sub.3)CHCH.sub.2 n.sub.D.sup.18.0 1.5300 144 N      HCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OCH(CH.sub.3)CCH Glassy 145      NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OCH(CH.sub.3)CH.sub.2      OCH.sub.3 Glassy  146 NHCOOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O       ##STR36##       Glassy  147 NO.sub.2 OC.sub.2 H.sub.5 OC.sub.2 H.sub.5 H O OC.sub.3      H.sub.7 (i) M.P. 97-98° C. 148 NO.sub.2 Cl H H O OCH.sub.3 M.P.      141-142° C. 149 NH.sub.2 Cl H H O  OCH.sub.3 M.P. 126-130°      C. 150 NHSCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      151 OSCH.sub.3 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i) 152 SOCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      153       ##STR37##       CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)       154      ##STR38##       CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)  155 SO.sub.2      OCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) 156      SO.sub.2 NHCH.sub.3 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      157 SC.sub.2 H.sub.5 CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)      158       ##STR39##       CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)       159      ##STR40##       CH.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)  160 NHCOOCH.sub.3      CH.sub.3 OC.sub.2 H.sub.5 OH O OC.sub.3 H.sub.7 (i) 161 NO.sub.2      OC.sub.2 H.sub.5 OC.sub.2 H.sub.5 CH.sub.3 O OC.sub.3 H.sub.7 (i)      n.sub.D.sup.20.0 1.5075 162 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2 H.sub.5 C      H.sub.2 CHCH.sub.2 O OC.sub.3 H.sub.7 (i) 163 NO.sub.2 CH.sub.2       OCH.sub.3 OC.sub.2 H.sub.5 CH.sub.2 CCH O OC.sub.3 H.sub.7 (i) 164      NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2 H.sub.5 CH.sub.2 COOCH.sub.3 O      OC.sub.3 H.sub.7 (i)  165 NO.sub. 2 CH.sub.2 OCH.sub.3 OC.sub.2 H.sub.5       ##STR41##       O OC.sub.3 H.sub.7 (i)  166 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2      H.sub.5       ##STR42##       O OC.sub.3 H.sub.7 (i)  167 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2      H.sub.5       ##STR43##       O OC.sub.3 H.sub.7 (i)  168 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2      H.sub.5 SCH.sub.3 O OC.sub.3 H.sub.7 (i)  169 NO.sub.2 CH.sub.2       OCH.sub.3 OC.sub.2       H.sub.5      ##STR44##       O OC.sub.3 H.sub.7 (i)  170 NO.sub.2 CH.sub.2 OCH.sub.3 OC.sub.2      H.sub.5 SCOOC.sub.2 H.sub.5 O OC.sub.3 H.sub.7 (i) 171 NHC.sub.2 H.sub.5 C      H.sub.3 OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)       172 NO.sub.2      ##STR45##       OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) M.P. 112-113° C.  173      CHCHNO.sub.2 Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i)       174      ##STR46##       Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7 (i) Glassy       175      ##STR47##       Cl OC.sub.2 H.sub.5 H O OC.sub.3 H.sub.7       (i)

In the practical usage of the compounds (I) as fungicides, they may be applied as such or in a formulation form such as dusts, wettable powders, oil sprays, emulsifiable concentrates, tablets, granules, fine granules, aerosols or flowables. Such formulation form can be formulated in a conventional manner by mixing at least one of the compounds (I) with an appropriate solid or liquid carrier(s) or diluent(s) and, if necessary, an appropriate adjuvant(s) (e.g. surfactants, adherents, dispersants, stabilizers) for improving the dispersibility and other properties of the active ingredient.

Examples of the solid carriers or diluents are botanical materials (e.g. flour, tobacco stalk powder, soybean powder, walnut-shell powder, vegetable powder, saw dust, bran, bark powder, cellulose powder, vegetable extract residue), fibrous materials (e.g. paper, corrugated cardboard, old rags), synthetic plastic powders, clays (e.g. kaolin, bentonite, fuller's earth), talcs, other inorganic materials (e.g. pyrophyllite, sericite, pumice, sulfur powder, active carbon) and chemical fertilizers (e.g. ammonium sulfate, ammonium phosphate, ammonium nitrate, urea, ammonium chloride).

Examples of the liquid carriers or diluents are water, alcohols (e.g. methanol, ethanol), ketones (e.g. acetone, methylethylketone), ethers (e.g. diethyl ether, dioxane, cellosolve, tetrahydrofuran), aromatic hydrocarbons (e.g. benzene, toluene, xylene, methyl naphthalene), aliphatic hydrocarbons (e.g. gasoline, kerosene, lamp oil), esters, nitriles, acid amides (e.g. dimethylformamide, dimethylacetamide), halogenated hydrocarbons (e.g. dichloroethane, carbon tetrachloride), etc.

Examples of the surfactants are alkyl sulfuric esters, alkyl sulfonates, alkylaryl sulfonates, polyethylene glycol ethers, polyhydric alcohol esters, etc. Examples of the adherents and dispersants may include casein, gelatin, starch powder, carboxymethyl cellulose, gum arabic, alginic acid, lignin, bentonite, molasses, polyvinyl alcohol, pine oil and agar. As the stabilizers, there may be used PAP (isopropyl acid phosphate mixture), tricresyl phosphate (TCP), tolu oil, epoxydized oil, various surfactants, various fatty acids and their esters, etc.

The foregoing formulations generally contain at least one of the compounds (I) in a concentration of about 1 to 95% by weight, preferably of 2.0 to 80% by weight. By using the formulations, the compounds (I) are generally applied in such amounts as 2 to 100 g per 10 are.

When only the drug-resistant strains of phytopathogenic fungi are present, the compounds (I) may be used alone. However, when the drug-sensitive strains are present together with the drug-resistant strains, their alternate use with benzimidazole, thiophanate and/or cyclic imide fungicides or their combined use with benzimidazole, thiophanate fungicides and/or cyclic imide fungicides is favorable. In such alternate or combined use, each active ingredient may be employed as such or in conventional agricultural formulation forms. In case of the combined use, the weight proportion of the compound (I) and the benzimidazole, thiophanate and/or cyclic imide fungicide may be from about 1:0.1 to 1:10.0.

Typical examples of the benzimidazole thiophanate and the cyclic imide fungicides are shown in Table 2.

                                      TABLE 2                                      __________________________________________________________________________     Compound                                                                              Structure             Name                                              __________________________________________________________________________             ##STR48##            Methyl 1-(butyl- carbamoyl)benz- imidazol-2-y                                  l-carbamate                                       B                                                                                      ##STR49##            2-(4-Thiazolyl)benz- imidazole                    C                                                                                      ##STR50##            Methyl benzimidazol- 2-ylcarbamate                D                                                                                      ##STR51##            2-(2-Furyl)benzimidazole                          E                                                                                      ##STR52##            1,2-Bis(3-methoxy- carbonyl-2-thio- ureido)be                                  nzene                                             F                                                                                      ##STR53##            1,2-Bis(3-ethoxy- carbonyl-2-thio- ureido)ben                                  zene                                              G                                                                                      ##STR54##            2-(O,SDimethyl- phosphorylamino)-1- (3'-metho                                  xycarbonyl- 2'-thioureido)benzene                 H                                                                                      ##STR55##            2-(O,ODimethylthio- phosphorylamino)-1-                                        (3'-methoxycarbonyl- 2'-thioureido)benzene        I                                                                                      ##STR56##            N(3',5'-Dichloro- phenyl)-1,2-dimethyl-                                        cyclopropane-1,2-di- carboximide                  J                                                                                      ##STR57##            3-(3',5'-Dichloro- phenyl)-1-isopropyl-                                        carbamoylimida- zolidin-2,4-dione                 K                                                                                      ##STR58##            3-(3',5'-Dichloro- phenyl)-5-methyl-5-                                         vinyloxazolidin-2,4-dione                         L                                                                                      ##STR59##            Ethyl (RS)3-(3',5'- dichlorophenyl)-5-                                         methyl-2,4-dioxo- oxazolidine-5-carboxylate       __________________________________________________________________________

Besides, the compounds (I) may be also used in admixture with other fungicides, herbicides, insecticides, miticides, fertilizers, etc.

When the compounds (I) are used as fungicides, they may be applied in such amounts as 2 to 100 grams per 10 ares. However, this amount may vary depending upon formulation forms, application times, application methods, application sites, diseases, crops and so on, and therefore, they are not limited to said particular amounts.

Some practical embodiments of the fungicidal composition according to the invention are illustratively shown in the following Examples wherein % and part(s) are by weight.

Formulation Example 1

Two parts of Compound No. 1, 88 parts of clay and 10 parts of talc were thoroughly pulverized and mixed together to obtain a dust formulation containing 2% of the active ingredient.

Formulation Example 2

Thirty parts of Compond No. 2, 45 parts of diatomaceous earth, 20 parts of white carbon, 3 parts of sodium laurylsulfate as a wetting agent and 2 parts of calcium ligninsulfonate as a dispersing agent were mixed while being powdered to obtain a wettable powder formulation containing 30% of the active ingredient.

Formulation Example 3

Fifty parts of Compound No. 3, 45 parts of diatomaceous earth, 2.5 parts of calcium alkylbenzenesulfonate as a wetting agent and 2.5 parts of calcium ligninsulfonate as a dispersing agent were mixed while being powdered to obtain a wettable powder composition containing 50% of the active ingredient.

Formulation Example 4

Ten parts of Compound No. 4, 80 parts of cyclohexanone and 10 parts of polyoxyethylene alkylaryl ether as an emulsifier are mixed together to obtain an emulsifiable concentrate formulation containing 10% of the active ingredient.

Formulation Example 5

One part of Compound No. 1, 1 part of Compound I, 88 parts of clay and 10 parts of talc are thoroughly pulverized and mixed together to obtain a dust formulation containing 2% of the active ingredient.

Formulation Example 6

Twenty parts of Compound No. 36, 10 parts of Compound J, 45 parts of diatomaceous earth, 20 parts of white carbon, 3 parts of sodium laurylsulfate as a wetting agent and 2 parts of calcium ligninsulfonate as a dispersing agent are mixed while being powdered to obtain a wettable powder formulation containing 30% of the active ingredient.

Formulation Example 7

Ten parts of Compound No. 1, 40 parts of Compound A, 45 parts of diatomaceous earth, 2.5 parts of calcium alkylbenzenesulfonate as a wetting agent and 2.5 parts of calcium ligninsulfonate as a dispersing agent are mixed while being powdered to obtain a wettable powder formulation containing 50% of the active ingredient.

Typical test data including the excellent fungicidal activity of the compounds of the formula (I) are shown below. The compounds used for comparison are as follows:

    ______________________________________                                         Compound             Remarks                                                   ______________________________________                                         Swep                 Commercially available                                     ##STR60##           herbicide                                                 Chlorpropham         Commercially available                                     ##STR61##           herbicide                                                 Barban               Commercially available                                     ##STR62##           herbicide                                                 CEPC                 Commercially available                                     ##STR63##           herbicide                                                 Propham              Commercially available                                     ##STR64##           herbicide                                                 Chlorbufam           Commercially available                                     ##STR65##           herbicide                                                 Benomyl              Commercially available                                     ##STR66##           fungicide                                                 Thiophanate-methyl   Commercially available                                     ##STR67##           fungicide                                                 Carbendazim          Commercially available                                     ##STR68##           fungicide                                                 ______________________________________                                    

Experiment 1

Protective activity test on powdery mildew of cucumber (Sphaerotheca fuliginea):

A flower pot of 90 ml volume was filed with sandy soil, and seeds of cucumber (var: Sagami-hanjiro) are sowed therein. Cultivation was carried out in a greenhouse for 8 days. Onto the resulting seedlings having cotyledons, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed at a rate of 10 ml per pot. Then, the seedlings were inoculated with a spore suspension of the drug-resistant or drug-sensitive strain of Sphaerotheca fuliginea by spraying and further cultivated in the greenhouse. Ten days thereafter, the infectious state of the plants was observed. The degree of damage was determined in the following manner, and the results are shown in Table 3.

The leaves examined were measured for a percentage of infected area and classified into the corresponding disease indices, 0, 0.5, 1, 2, 4:

    ______________________________________                                         Disease index                                                                               Percentage of infected area                                       ______________________________________                                         0            No infection                                                      0.5          Infected area of less than 5%                                     1            Infected area of less than 20%                                    2            Infected area of less than 50%                                    4            Infected area of not less than 50%                                ______________________________________                                    

The disease severity was calculated according to the following equation: ##EQU1##

The prevention value was calculated according to the following equation: ##EQU2##

                  TABLE 3                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          2        200          100        0                                            5         200          100        0                                            7         200          100        0                                            8         200          100        0                                            11        200          100        0                                            35        200          100        0                                            38        200          100        0                                            Swep      200          0          0                                            Chlorpropham                                                                             200          0          0                                            Barban    200          25         0                                            CEPC      200          0          0                                            Propham   200          0          0                                            Chlorbufam                                                                               200          0          0                                            Benomyl   200          0          100                                          Thiophanate-                                                                             200          0          100                                          methyl                                                                         Carbendazim                                                                              200          0          100                                          ______________________________________                                    

As understood from the results shown in Table 3, the compounds (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl, Thiophanate-methyl and Carbendazim show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain. Other tested compounds structurally similar to the compounds (I) do not show any fungicidal activity on the drug-sensitive strain and the drug-resistant strain.

Experiment 2

Preventive effect on cercospora leaf spot of sugarbeet (Cercospora beticola):

A flower pot of 90 ml volume was filled with sandy soil, and seeds of sugarbeet (var: Detroit dark red) were sowed therein. Cultivation was carried out in a greenhouse for 20 days. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed at a rate of 10 ml per pot. Then, the seedlings were inoculated with a spore suspension of the drug-resistant or drug-sensitive strain of Cercospora beticola by spraying. The pot was covered with a polyvinyl chloride sheet to make a condition of high humidity, and cultivation is continued in the greenhouse for 10 days. The degree of damage was determined in the same manner as in Experiment 1, and the results are shown in Table 4.

                  TABLE 4                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          1        500          100        0                                            2         500          100        0                                            3         500          100        0                                            7         500          100        0                                            16        500          100        0                                            30        500          100        0                                            36        500          100        0                                            43        500          100        0                                            44        500          100        0                                            Swep      200           0         0                                            Chlorpropham                                                                             200           0         0                                            Barban    200           34        0                                            CEPC      200           0         0                                            Propham   200           0         0                                            Chlorbufam                                                                               200           0         0                                            Benomyl   200           0         100                                          Thiophanate-                                                                             200           0         100                                          methyl                                                                         Carbendazim                                                                              200           0         100                                          ______________________________________                                    

As understood from the results shown in Table 4, the compounds (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl, Thiophanate-methyl and Carbendazim show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain. Other tested compounds structurally similar to the compounds (I) do not show any fungicidal activity on the drug-sensitive strain and the drug-resistant strain.

Experiment 3

Preventive effect on scab of pear (Venturia nashicola):

A plastic pot of 90 ml volume was filled with sandy soil, and seeds of pear (var: Chojuro) were sowed therein. Cultivation was carried out in a greenhouse for 20 days. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed at a rate of 10 ml per pot. Then, the seedlings were inoculated with a spore suspension of the drug-resistant or drug-sensitive strain of Venturia nashicola by spraying. The resulting plants were placed at 20° C. under a condition of high humidity for 3 days and then at 20° C. under irradiation with a fluorescent lamp for 20 days. The degree of damage was determined in the same manner as in Experiment 1, and the results are shown in Table 5.

                  TABLE 5                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          1        500          100        0                                            2         500          100        0                                            7         500          100        0                                            38        500          100        0                                            42        500          100        0                                            Benomyl   200           0         100                                          Thiophanate-                                                                             200           0         100                                          methyl                                                                         ______________________________________                                    

As understood from the results shown in Table 5, the compounds (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-sensitive strain.

Experiment 4

Preventive effect on brown leaf-spot of peanut (Cercospora arachidicola):

Plastic pots of 90 ml volume was filled with sandy soil, and seeds of peanut (var: Chiba hanryusei) were sowed therein. Cultivation was carried out in a greenhouse for 14 days. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed at a rate of 10 ml per pot. Then, the seedlings were inoculated with a spore suspension of the dsug-resistant or drug-sensitive strain of Cercospora arachidicola by spraying. The resulting plants were covered with a polyvinyl chloride sheet to make a condition of humidity and cultivated in the greenhouse for 10 days. The degree of damage was determined in the same manner as in Experiment 1, and the results are shown in Table 6.

                  TABLE 6                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          2        500          100         0                                           Benomyl   200          0          100                                          Thiophanate-                                                                             200          0          100                                          methyl                                                                         ______________________________________                                    

As understood from the results shown in Table 6, the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.

Experiment 5

Preventive effect on gray mold of cucumber (Botrytis cinerea):

A plastic pot of 90 ml volume is filled with sandy soil, and seeds of cucumber (var: Sagami-hanjiro) are sowed therein. Cultivation was carried out in a greenhouse for 8 days to obtain cucumber seedlings expanding cotyledons. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water were sprayed at a rate of 10 ml per pot. After air-drying, the seedlings were inoculated with mycelial disks (5 mm in diameter) of the drug-resistant or drug-sensitive strain of Botrytis cinerea by putting them on the leaf surfaces. After the plants are infected by incubating under high humidity at 20° C. for 3 days, the rates of disease severity are observed. The degree of damage is determined in the same manner as in Experiment 1, and the results are shown in Table 7.

                  TABLE 7                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          1        500          100        0                                            2         500          100        0                                            3         500          100        0                                            4         500          100        0                                            5         500          100        0                                            6         500          100        0                                            7         500          100        0                                            8         500          100        0                                            9         500          100        0                                            10        500          100        0                                            11        500          100        0                                            12        500          100        0                                            13        500          100        0                                            14        500          100        0                                            15        500          100        0                                            16        500          100        0                                            17        500          100        0                                            18        500          100        0                                            19        500          100        0                                            20        500          100        0                                            21        500          100        0                                            22        500          100        0                                            23        500          100        0                                            24        500          100        0                                            25        500          100        0                                            26        500          100        0                                            27        500          100        0                                            28        500          100        0                                            29        500          100        0                                            30        500          100        0                                            31        500          100        0                                            32        500          100        0                                            33        500          100        0                                            34        500          100        0                                            35        500          100        0                                            36        500          100        0                                            37        500          100        0                                            38        500          100        0                                            39        500          100        0                                            40        500          100        0                                            41        500          100        0                                            42        500          100        0                                            43        500          100        0                                            44        500          100        0                                            45        500          100        0                                            46        500          100        0                                            47        500          100        0                                            48        500          100        0                                            49        500          100        0                                            50        500          100        0                                            51        500          100        0                                            52        500          100        0                                            53        500          100        0                                            54        500          100        0                                            55        500          100        0                                            56        500          100        0                                            57        500          100        0                                            58        500          100        0                                            59        500          100        0                                            60        500          100        0                                            Benomyl   200           0         100                                          Thiophanate-                                                                             200           0         100                                          methyl                                                                         ______________________________________                                    

As understood from the results shown in Table 7, the compounds (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.

Experiment 6

Preventive effect on gummy stem blight of cucumber (Mycosphaerella melonis):

A plastic pot of 90 ml volume is filled with sandy soil, and seeds of cucumber (var: Sagami-hanjiro) are sowed therein. Cultivation was carried out in a greenhouse for 8 days to obtain cucumber seedlings exponding cotyledons. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed at a rate of 10 ml per pot. After air-drying, the seedlings were inoculated with mycelial disks (5 mm in diameter) of the drug-resistant or drug-sensitive strain of Mycosphaerella melonis by putting them on the leaf surfaces. After the plants were infected by incubating under high humidity at 25° C. for 4 days, the rates of disease severity were observed. The degree of damage was determined in the same manner as in Experiment 1, and the results are shown in Table 8.

                  TABLE 8                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          2        500          100        0                                            5         500          100        0                                            7         500          100        0                                            9         500          100        0                                            11        500          100        0                                            31        500          100        0                                            34        500          100        0                                            35        500          100        0                                            36        500          100        0                                            Benomyl   200           0         100                                          Thiophanate-                                                                             200           0         100                                          methyl                                                                         ______________________________________                                    

As understood from the results shown in Table 8, the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl and Thiophanate-methyl show a notable controlling effect on the drug-sensitive strain but not on the drug-resistant strain.

Experiment 7

Preventive effect on green mold of orange (Penicillium italicum):

Fruits of orange (var: Unshu) were washed with water and dried in the air. The fruits were immersed in a solution of the test compound prepared by diluting an emulsifiable concentrate comprising the test compound with water for 1 minute. After drying in the air, the fruits were inoculated with a spore suspension of the drug-resistant or drug-sensitive strain of Penicillium italicum by spraying and placed in a room of high humidity for 14 days. The degree of damage was determined in the following manner.

The fruits examined were measured for a percentage of infected area and classified into the corresponding indices, 0, 1, 2, 3, 4, 5:

    ______________________________________                                         Disease index                                                                               Percentage of infected area                                       ______________________________________                                         0            No infection                                                      1            Infected area of less than 20%                                    2            Infected area of less than 40%                                    3            Infected area of less than 60%                                    4            Infected area of less than 80%                                    5            Infected area of not less than 80%                                ______________________________________                                    

Calculation of the degree of damage and the prevention value was made as in Experiment 1.

The results are shown in Table 9.

                  TABLE 9                                                          ______________________________________                                                                Prevention Prevention                                                          value when value when                                             Concentration                                                                               inoculated inoculated                                             of active    with drug- with drug-                                   Compound  ingredient   resistant  sensitive                                    No.       (ppm)        strain (%) strain (%)                                   ______________________________________                                          7        500          100         0                                           Benomyl   200          0          100                                          Thiophanate-                                                                             200          0          100                                          methyl                                                                         ______________________________________                                    

As understood from the results shown in Table 9, the compounds of the formula (I) of the invention show an excellent preventive effect on the drug-resistant strain but do not show any preventive effect on the tested drug-sensitive strain. To the contrary, commercially available known fungicides such as Benomyl and Thiophanate-methyl show but not on the drug-resistant strain.

Experiment 8

Phytotoxicity on crop plants:

Plastic pots of 150 ml volume were filled with sandy soil, and seeds of wheat (var: Norin No. 61), apple (var: Kogyoku) and peanut (var: Chiba hanryusei) were sowed therein. Cultivation was carried out in a greenhouse. Onto the resulting seedlings, the test compound formulated in emulsifiable concentrate or wettable powder and diluted with water was sprayed. After cultivation in the greenhouse for additional 10 days, the phytoxicity was examined on the following criteria:

    ______________________________________                                         Extent   Observation                                                           ______________________________________                                         -        No abnormality                                                        +        Abnormality due to phytotoxicity observed in                                   a part of crop plants                                                 ++       Abnormality due to phytotoxicity observed in                                   entire crop plants                                                    +++      Crop plants withered due to phytotoxicity                             ______________________________________                                    

The results are shown in Table 10.

                  TABLE 10                                                         ______________________________________                                                  Concentration                                                                  of active                                                             Compound ingredient   Phytotoxicity                                            No.      (ppm)        Wheat    Apple  Peanut                                   ______________________________________                                         2        1000         -        -      -                                        Barban   1000         -        ++     ++                                       CEPC     1000         -        ++     ++                                       Swep     1000         ++       ++     +                                        ______________________________________                                    

As understood from the results shown in Table 10, the compounds of the formula (I) of the invention produce no material phytotoxicity, while commercially available herbicides having a chemical structure similar thereto produce considerable phytotoxicity.

Experiment 9

Preventive effect on powdery mildew of cucumber (Sphaerotheca fuliginea):

A plastic pot of 90 ml volume was filled with sandy soil, and seeds of cucumber (var: Sagami-hanjiro) were sowed therein. Cultivation was carried out in a greenhouse for 8 days. Onto the resulting seedlings having cotyledons, the test compound(s) formulated in emulsifiable concentrate or wettable powder and diluted with water were sprayed at a rate of 10 ml per pot. Then, the seedlings were inoculated with a mixed spore suspension of the drug-resistant and drug-sensitive strain of Sphaerotheca fuliginea by spraying and further cultivated in the greenhouse. Ten days thereafter, the infectious state of the plants were observed. The degree of damage was determined in the same manner as in Experiment 1, and the results are shown in Table 11.

                  TABLE 11                                                         ______________________________________                                                       Concentration of                                                               active ingredient                                                                           Prevention                                          Compound No.  (ppm)        value (%)                                           ______________________________________                                          1            100          42                                                  1              20           0                                                  7             100          40                                                  7              20           0                                                  28            100          38                                                  28             20           0                                                  34            100          36                                                  34             20           0                                                  35            100          42                                                  35             20           0                                                  A             100          45                                                  A              20          12                                                  B             500          42                                                  B             100          10                                                  C             100          42                                                  C              20           8                                                  D             500          36                                                  D             100           0                                                  E             100          44                                                  E              20          10                                                  F             100          43                                                  F              20           8                                                  G             100          42                                                  G              20           8                                                  H             100          40                                                  H              20           5                                                  1 + A         20 + 20      100                                                 1 + B         20 + 20      100                                                 1 + E         20 + 20      100                                                 1 + G         20 + 20      100                                                 7 + C         20 +  20     100                                                 7 + D         20 + 20      100                                                 7 + G         20 + 20      100                                                 7 + H         20 + 20      100                                                 28 + A        20 + 20      100                                                 28 + B        20 + 20      100                                                 34 + E        20 + 20      100                                                 34 + F        20 + 20      100                                                 35 + A        20 + 20      100                                                 35 + E        20 + 20      100                                                 ______________________________________                                    

As understood from the results shown in Table 11, the combined use of the compounds of the formula (I) of the invention with benzimidazole, thiophanate and/or cyclic imide fungicides show much more excellent preventive effect than their sole use.

Experiment 10

Preventive effect on gray mold of tomato (Botryris cinerea):

A plastic pot of 90 ml volume is filled with sandy soil, and seeds of tomato (var: Fukuju No. 2) are sowed therein. Cultivation is carried out in a greenhouse for 4 weeks. Onto the resulting seedlings at the 4-leaf stage, the test compound(s) formulated in emulsifiable concentrate or wettable powder and diluted with water are sprayed at a rate of 10 ml per pot. Then, the seedlings are inoculated with a mixed spore suspension of the drug-resistant and drug-sensitive strain of Botryris cinerea by spraying and placed at 20° C. in a room of high humidity for 5 days. The degree of damage is determined in the same manner as in Experiment 1, and the results are shown in Table 12.

                  TABLE 12                                                         ______________________________________                                                       Concentration of                                                                            Prevention                                                        active ingredient                                                                           value                                               Compound No.  (ppm)        (%)                                                 ______________________________________                                          1            100          38                                                  1              20           0                                                  7             100          36                                                  7              20           0                                                  28            100          34                                                  28             20           0                                                  36            100          32                                                  36             20           0                                                  I             100          48                                                  I              20          22                                                  J             500          46                                                  J             100          18                                                  K             100          42                                                  K              20          15                                                  L             500          42                                                  L             100          12                                                  1 + I         10 + 20      100                                                 1 + J         10 + 20      100                                                 7 + I         10 + 20      100                                                 7 + K         10 + 20      100                                                 28 + I        10 + 20      100                                                 28 + L        10 + 20      100                                                 36 + I        10 + 20      100                                                 36 + J        10 + 20      100                                                 ______________________________________                                    

As understood from the results shown in Table 12, the combined use of the compounds (I) of the invention with benzimidazole, thiophanate and/or cyclic imide fungicides show much more excellent preventive effect than their sole use. 

What is claimed is:
 1. A compound of the formula: ##STR69## wherein R₁ is a lower alkyl group and Y is a halogen atom.
 2. The compound of claim 1, of the formula: ##STR70##
 3. A compound of the formula: ##STR71## wherein R is a lower alkenyl group or a lower alkynyl group;R₂ is a lower alkyl group; R₅ is a lower alkyl group; and Y' is a halogen atom.
 4. The compound of claim 3, wherein R₁ is a lower alkenyl group.
 5. The compound of claim 3, wherein R₁ is a lower alkynyl group.
 6. The compound of claim 3, wherein R₂ is a methyl group.
 7. The compound of claim 3, wherein Y' is a chlorine atom.
 8. The compound of claim 3, wherein R₅ is an isopropyl group.
 9. The compound of claim 3, wherein R₅ is an isopropyl group and Y' is a chlorine atom.
 10. The compound of claim 3, of the formula: ##STR72##
 11. The compound of claim 3, of the formula: ##STR73##
 12. A compound of the formula: ##STR74## wherein R₁ is a lower alkyl, lower alkenyl or lower alkynyl, R₂ is lower alkyl, Y is halogen or lower alkyl and R₅ is lower alkyl.
 13. A compound of the formula: ##STR75## wherein R₁ is C₂ -C₃ alkyl, C₃ alkenyl or C₃ alkynyl, R₂ is methyl, Y is chlorine or methyl and R₅ is C₁ -C₃ alkyl.
 14. A fungicidal composition comprising as an active ingredient a fungicidally effective amount of a compound according to claim 1, 3, 12 or 13 and an inert carrier or diluent.
 15. The fungicidal composition according to claim 14, which further comprises as an additional active ingredient at least one of benzimidazole, thiophanate or cyclic imide fungicides.
 16. The fungicidal composition according to claim 15, wherein the benzimidazole fungicide is chosen from methyl 1-(butylcarbamoyl)benzimidazol-2-ylcarbamate, 2-(2-furyl)benzimidazole, 2-(4-thiazolyl)benzimidazole, methyl benzimidazol-2-ylcarbamate, the thiophanate fungicide is chosen from 1,2-bis(3-methoxycarbonyl-2-thioureido)benzene, 1,2-bis(3-ethoxycarbonyl-2-thioureido)benzene, 2-(O,S-dimethylphosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido)benzene or 2-(O,O-dimethylthiophosphorylamino)-1-(3'-methoxycarbonyl-2'-thioureido)benzene and the cyclic imide fungicide is chosen from 3-(3',5'-dichlorophenyl)-1,2-dimethylcyclopropane-1,2-dicarboximide, 3-(3',5'-dichlorophenyl)-1-isopropylcarbamoylimidazolidine-2,4-dione, 3-(3',5'-dichlorophenyl)-5-methyl-5-vinyloxazolidine-2,4-dione and ethyl (RS)-3-(3',5'-dichlorophenyl)-5-methyl-2,4-dioxooxazolidine-5-carboxylate.
 17. A method for controlling plant pathogenic fungi which comprises applying a fungicidally effective amount of the composition of claim 14, to plant pathogenic fungi.
 18. The method according to claim 17, wherein the plant pathogenic fungi is a drug-resistant strain.
 19. A method for controlling plant pathogenic fungi which comprises applying to plant pathogenic fungi a fungicidally effective amount of a mixture of at least one of compound of the formula: ##STR76## wherein X, Y, Z, R, A and B are each as defined in claim 14, and at least one of benzimidazole, thiophanate and cyclic imide fungicide. 